Catalog number(s): USNM 873300 Subject: Genitalia; a-b. left side female,c. dorsal penis Artist: Escher, Susan C. Medium: Ink line and stipple on Denril drafting film Published: Hershler, R. and F.G. Thompson 1992 A Review of the Aquatic Gastropod Subfamily Cochliopinae (Prosobranchia: Hydrobiidae). Malacological Review, Supplement 5: 1-140. Fig. 25.
